1.13 Conference Features98 Feature Guide• To allow a three-party conference call involving an outside party or parties to continue after theoriginator leaves, it is necessary to enable calls to be transferred to CO lines through COSprogramming.• Unattended Conference Call DurationThe duration of an Unattended Conference can be restricted by the Unattended Conference Recalltime. The Unattended Conference Recall time consists of the following programmable timers:a) Unattended Conference Recall Start Time: When the timer expires, Unattended ConferenceRecall starts to be heard at the conference originator. If the originator does not return to theconference, Unattended Conference Recall Continuous time before Sending Alarm Tone to CO willstart.b) Unattended Conference Recall Continuous Time before Sending Alarm Tone to CO: Whenthe timer expires, an alarm tone starts to be heard by parties in the Unattended Conference. If theoriginator does not return to the conference, Unattended Conference Recall & Alarm Continuoustime before Disconnecting will start.c) Unattended Conference Recall & Alarm Continuous Time before Disconnecting: When thetimer expires, the Unattended Conference call is disconnected.If the originator returns to the conference before the Unattended Conference call is disconnected, thetimer will be canceled. If not, Unattended Conference Recall and an alarm tone will continue to be hearduntil the Unattended Conference call is disconnected.• For Conferences of Six or More PartiesAn ECHO card is required, and Echocanceler should be enabled through system programming.• Consultation HoldWhen an extension user tries to establish a conference call, the current call is placed automatically onconsultation hold until the conference is established (→ 1.12.5 Consultation Hold).Installation Manual References2.5.2 ECHO8 CardFeature Guide References1.18.2 Flexible ButtonsUser Manual References1.4.5 Multiple Party Conversation1.13.1.3 Privacy ReleaseDescriptionBy default, all conversations which take place on CO lines, extension lines and doorphone lines areprotected from others interrupting the conversations (Automatic Privacy).Privacy Release allows a proprietary telephone (PT) or portable station (PS) user to suspend AutomaticPrivacy for an existing CO line call on the S-CO button in order to establish a three-party call.System programming is required to enable or disable this feature.
